Germany vs USA — 1990 vs 2006
| SL 500SL (R129) | XLR-V Supercharged Northstar | |
|---|---|---|
| Horsepower | 322 hp | 443 hp |
| Torque | 354 lb-ft | 414 lb-ft |
| Engine Size | 4,973 cc | 4,371 cc |
| 0-60 mph | 6.2 sec | 4.6 sec |
| Top Speed | 155 mph | 155 mph |
| ¼ Mile | 14.5 sec | 13.0 sec |
| Weight | 3,990 lbs | 4,022 lbs |
| Wheelbase | 2,515 mm | 2,685 mm |
| Length | 4,470 mm | 4,515 mm |
| Units Produced | 85,000 | 2,485 |
| Original MSRP | $82,500 | $98,290 |
| Value (Excellent) | $50,000 | $55,000 |
| Collectibility | 6/10 | 6/10 |
| Rarity | 3/10 | 8/10 |
The 2006 Cadillac XLR-V Supercharged Northstar emerges ahead in most objective measures, offering more power, quicker acceleration, greater rarity. The 1990 Mercedes-Benz SL 500SL (R129) counters with better value, but the numbers favor its rival. Still, both are remarkable machines, and the final choice often comes down to which driving experience speaks to you.
When Germany engineering meets USA craftsmanship, the result is one of the most compelling matchups in the classic car world. The 1990 Mercedes-Benz SL 500SL (R129) and 2006 Cadillac XLR-V Supercharged Northstar embody their respective national automotive traditions while competing in the same arena. The 2006 Cadillac XLR-V Supercharged Northstar holds a clear advantage in raw power with 443 hp compared to 322 hp, a 121-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Mercedes-Benz SL uses a V8 DOHC 32V (M119) displacing 4,973 cc, while the Cadillac XLR-V relies on a V8 DOHC Supercharged (Northstar LC3) with 4,371 cc. In the sprint to 60 mph, the 2006 Cadillac XLR-V Supercharged Northstar edges ahead at 4.6 seconds versus 6.2 seconds. Rarity plays a significant role here — with only 2,485 units built, the 2006 Cadillac XLR-V Supercharged Northstar is considerably scarcer than the Mercedes-Benz SL's 85,000 examples.